$servers = Get-Content C:server.txt
$folder = "D$store"
$smtpserver = "XXXXXX"
@(
           foreach ($Server in $Servers)
          {
$folderSize = ( Get-ChildItem -path \$server$folder -Recurse -Force | Measure-Object -Property Length -Sum ).Sum

if ($folderSize -gt '60Gb') {
 Write-output "Folder size exceeded 60 GB on server:-$Server. Current size on $server is $folderSize. Please review and take further action." | Out-file -FilePath "C:reslt.txt"
 Send-MailMessage -to abc@abc.com -from xx@xx.com -Subject "Limit Alert" -SmtpServer $smtpserver -Attachments "C:reslt.txt"
 }

else { Write-output "Folder size is within 60GB on $server." }})

$servers = Get-Content C:server.txt
$folder = "D$store"
$smtpserver = "XXXXXX"
$results = @()

foreach ($Server in $Servers) {
    $folderSize = ( Get-ChildItem -path \$server$folder -Recurse -Force | Measure-Object -Property Length -Sum ).Sum
    if ($folderSize -gt '60Gb') {
        Write-Output "Folder size exceeded limit on $server"
        $results += New-Object -TypeName PSObject -Property @{
            ServerName = $Server
            FolderSize = $folderSize
        }
    }
    else { Write-output "Folder size is within 60GB on $server." }
}
if ($results.Count -gt 0){
    $bodyString = "Servers over limit:"
    #I'd get fancy here and take $results, format it as a table, and then convert to HTML and put the snippet in the body...
    $results | % {$bodyString += "The server "+$_.ServerName+"is over the limit and is currently at "+$_.FolderSize+"GB`r`n"}
    Send-MailMessage -to abc@abc.com -from xx@xx.com -Subject "Limit Alert" -SmtpServer $smtpserver -Body $bodyString
}
else {
    Send-MailMessage -to abc@abc.com -from xx@xx.com -Subject "Limit Alert - no results" -SmtpServer $smtpserver -Body "No results were found for servers over the limit"
}